{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.671","julian_year":2026.671,"time":"2026-09-02T22:05:23.404Z","years_from_j2000":26.671,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued J2000 position is carried along the great circle the object's own published motion puts it on, at a constant velocity, and the result is referred to the true equator and equinox of this instant. Those are separate things: the motion moves the object, and the rotation turns the grid under it by about fifty arcseconds a year, with nutation adding up to another seventeen.","excluded":"Parallax, the radial-velocity perspective term, aberration and refraction; each is below the accuracy of the catalogued positions themselves. An object with no published proper motion comes back where the catalogue has it rather than at a fabricated zero, and says so with a null pm_ra_mas_yr. A body with no fixed position is not propagated at all — its place comes from an ephemeris, which is what /api/v1/visible answers with."},"slug":"hd-93765","name":"44 LMi","class":"f3v_yellow_white_main_sequence_star","category":"star","object_type":"F3V yellow-white main-sequence star","mag":6.05,"mag_band":"V","abs_mag":1.361,"abs_mag_band":"V","distance_ly":282.63113526682173,"distance_method":"parallax","ra_deg":162.473865,"dec_deg":27.973948,"epoch_ra_deg":162.84256,"epoch_dec_deg":27.83218,"epoch_moved_arcsec":0.879,"pm_ra_mas_yr":-10.54,"pm_dec_mas_yr":31.22,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Leo Minor","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-93765","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"age_years":1104046000,"mass_solar":1.985,"radius_solar":3.611,"spectral_type":"F3V","color_index_bv":0.399,"luminosity_solar":24.86566051307934,"metallicity_fe_h":-0.1,"radial_velocity_km_s":3,"spectral_type_source":"SIMBAD (quality C)","surface_gravity_log_g":3.505,"surface_temperature_k":6818,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":-10.54,"proper_motion_dec_mas_yr":31.22,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":24.2201},"designations":[{"catalog":"Bayer/Flamsteed","designation":"44 LMi"},{"catalog":"HD","designation":"HD 93765"},{"catalog":"HIP","designation":"HIP 52959"},{"catalog":"HR","designation":"HR 4230"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","attribution":"Data from SpaceCatalog.org. Individual records carry their source and license in `source`; attribution is required for CC-BY and CC-BY-SA rows."}